Kingflex
Modern industrial plants, HVAC networks, chemical processing facilities, and cryogenic systems rely heavily on engineered insulation layouts to achieve strict thermal conservation, condensation prevention, and mechanical protection. In the era of carbon neutrality targets and stringent ESG reporting, high-performance thermal insulation is no longer merely a basic mechanical component—it is a critical enabler of system-wide decarbonization.
Globally, the demand for elastomeric rubber foam (NBR/PVC) has surged due to its inherent superiority over traditional fibrous systems in terms of moisture vapor impermeability, ease of installation, and lifecycle longevity. Markets across Europe, North America, and the Asia-Pacific region are increasingly transitioning to premium closed-cell structures for building services and industrial piping networks.
As standard regulatory frameworks (such as ASHRAE 90.1, BS 476, and ASTM C534) become more rigorous, manufacturers are pushed to optimize the density, flame resistance, and thermal conductivity of elastomeric layouts to ensure compliance under volatile operating conditions.
Kingflex Insulation Co., Ltd. stands as a premier manufacturing and trading combo specializing in state-of-the-art thermal and cryogenic insulation systems. Situated in Dacheng, China—globally recognized as the capital of green building materials—our facility integrates advanced R&D, precision manufacturing, and customized technical consulting.
At our core, we believe in energy-saving and consumption reduction. We support our global client base through structural design, thermal loss calculations, customized thickness profiles, and comprehensive post-sale field guidance. Kingflex has transformed into an industry-leading integrated solution provider for thermal, cold, and acoustic isolation.
Jinwei Group Heritage (Since 1979)
Expert R&D Team & Production Force
Advanced Automatic Extrusion Systems
Kingflex was established by the Jinwei Group, which possesses a rich history spanning more than 40 years. Founded in 1979, the Jinwei Group pioneered thermal insulation manufacturing in the regions north of the Yangtze River. Today, this legacy underpins Kingflex's engineering rigor and manufacturing capabilities.
Our workforce features 8 specialized R&D engineers, 6 professional international sales, and 230 highly skilled factory workers. Equipped with 5 large-scale automatic assembly lines, we process and supply over 600,000 cubic meters of high-density rubber foam annually. Our capabilities have earned us the designation of key supplier by the Ministry of Energy, the Ministry of Electric Power, and the Ministry of Chemical Industry in China.
The core of Kingflex's success lies in our advanced material formulation. By combining high-grade Nitrile Butadiene Rubber (NBR) and Polyvinyl Chloride (PVC), we create a highly stable, flexible, and completely closed-cell structural matrix. The micro-cellular structure traps air inside extremely tiny, uniform bubbles, preventing thermal convection and resisting moisture vapor intrusion.
| Property | Kingflex Standard Elastomeric Rubber Foam | Rock Wool / Glass Wool Systems |
|---|---|---|
| Closed-Cell Rate | > 98% | Open-fibrous matrix (0%) |
| Thermal Conductivity (at 0°C) | ≤ 0.034 W/(m·K) | 0.035 - 0.045 W/(m·K) (increases rapidly with moisture) |
| Service Temp Range | -40℃ to +105℃ (Cryogenic series down to -200℃) | Up to +650℃ (Rock wool) / +400℃ (Glass wool) |
| Moisture Permeability (μ) | ≥ 10,000 (Vapor-impermeable) | Requires structural jacketing (easily saturated) |
| Corrosion Risk (CUI) | Extremely Low (Prevents water accumulation) | Moderate to High (Water retention causes CUI) |
| Acoustic Damping | Excellent for structural vibrations & low-mid frequencies | Good sound absorption (open structure) but lacks barrier properties |
In petrochemical plants, LNG storage facilities, and low-temperature process piping, maintaining temperatures down to -200°C requires specialized cryogenic insulation layout designs. Standard insulation becomes brittle and cracks when exposed to extreme cold. Kingflex addresses this challenge with our specialized, multi-layered flexible cryogenic foam systems.
Our cryogenic configurations feature specialized formulations that retain flexibility even at ultra-low temperatures, absorbing mechanical vibrations and contraction in piping systems. This performance prevents thermal cracking and ensures the system maintains its vapor barrier over decades of operation.
Designed for easy field installation, these systems reduce installation times compared to traditional rigid glass foam systems, which require complex joints and sealant layouts.
Kingflex insulation layouts are optimized for a wide range of industrial and civil applications:
Global projects require verified compliance with fire safety, chemical restriction, and thermal efficiency standards. Kingflex maintains a strict quality control system, backed by international certifications that allow our products to be specified in regulated projects worldwide.
Our elastomeric insulation has undergone comprehensive testing to meet standards such as BS 476 (Parts 6 & 7 Class 0/Class 1) for fire propagation and surface spread of flame, UL 94 (V-0 rating), CE for the European market, RoHS/REACH for environmental safety, and ASTM C534. This compliance ensures safe, reliable performance across building services and heavy industrial networks.
Exporting to more than 66 countries, Kingflex has established a customer-first service framework. We support clients from the initial thermal load calculation phase through to product delivery and on-site assembly guidance.
Our sales and engineering teams work directly with international contractors to customize sizes, colors, and density configurations. This approach helps reduce waste on site and ensures projects remain within budget.
For large-scale construction, chemical processing, and marine projects, our product categories include:
